2a thread class right-hand 0.059" thread length flat countersunk undercut head style 80 thread quantity per inch nickel screw surface treated unf thread series
Used on sh-60b helicopter, cobra attack helicopter, b1b bomber, c-130 hercules. 2a thread class right-hand 0.312" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.500" grip length 0.2681 in. second shank dia, and lubrication dry film mil-l-8937 nickel surface treated unjf thread series
3a thread class right-hand 0.693" grip length 28 thread quantity per inch 125000 single pounds per square inch shear strength cadmium surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 0.407" grip length self-locking passivate sleeve surface treated
3a thread class right-hand flush countersunk head style 1.650" grip length 24 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand flush countersunk head style 0.650" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength cadmium surface treated unjf thread series
3a thread class right-hand flush countersunk head style 1.365" grip length 24 thread quantity per inch 108000 single pounds per square inch shear strength 0.3429 in. second shank diameter cadmium surface treated unjf thread series
